of a new Variable Star, ■ i ^ i 



In order to obtain a point of comparifon, for fettling the 

 jjeriodlcal changes of ^ Antinol, which I fuppofe to be con- 

 stant, it is natural to fix upon that phafis, which can be deter- 

 mined with the greateft preciiion ; and this feems to be at the 

 time when it is between its leaft and greateft brightnefs, as 

 clmoji the lohole increafe of brightnefs is completed in lefs than 

 24 hours, though the perfect completion is performed only in 

 36 ± hours ; thus having fettled this necelfary point, and found 

 roughly the length of a fingle period, the computations, in 

 order to dbtain greater exaftnefs, are as follows. 



S 2 Time 



